TY - JOUR AU - Thomas Parker C2 - IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control DA - 1999-01-01 LA - en M1 - 46 PB - IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control PY - 1999 TI - Environmental Factors and Hydrogen Maser Frequency Stability UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105536 ER -